Content Quality: Briefing of about 510 words (range 300-800). Clear Overview / What We Know / What We Don't Know / Analysis structure, neutral tone, no AI self-reference.
Source Verification: Read both snapshots from disk (gunzip, text-extracted): source-0.html.gz (github.blog changelog, Oct 1, 2026, HTTP 200) and source-1.html.gz (docs.github.com concepts page, HTTP 200, full text on disk, not just a summarizer view). Both domains are allowlisted (github.blog; docs.github.com, first-party). suspicious_patterns null for both. source-0 confirms: date 'October 1, 2026'; 'Dynamic workflows are now available in Copilot CLI, the GitHub Copilot app, and the GitHub Copilot SDK'; 'define an orchestration in code to get the reliability and observability that complex, multi-agent work demands' (verbatim); 'A dynamic workflow is a program that defines how a task is carried out' (verbatim); steps sequential/parallel/both; 'The program itself lives inside a GitHub Copilot extension'; incident example and 'The same steps run every time'; 'agents handle the parts that need analysis or judgment'; 'Dynamic workflows are available on all Copilot plans.' (verbatim); app 'always available with no setup required'; CLI --experimental / '/experimental on' / '/update' / '/feedback'; 'Dynamic workflows are in public preview and subject to change.' (verbatim). source-1 confirms: public preview banner; same definition; 'Everything is defined in code'; autopilot 'keep working through a task without pausing to get your input'; /fleet 'Copilot decides how to break down the task each time'; dynamic workflow 'The workflow's author defines the steps, conditions, and handoffs'; four limits (concurrent agents, total agents, active running time, approximate AI credits) set in prompt, workflow code or personal settings with prompt taking priority; /workflows slash command and Workflows button in the app show runs, AI credit usage, and allow cancel/pause; 'a normal prompt in the standard chat mode is usually sufficient'; availability: 'available to users on all Copilot plans except Copilot Pro and Copilot Pro+ subscribers on existing annual plans who remain on legacy premium request-based billing.'
Factual Accuracy: Every claim traces to the two cited sources. The plan-availability discrepancy is real and verbatim in both snapshots (changelog: all plans; docs: legacy annual Pro/Pro+ excluded); the article presents both statements under 'What We Don't Know' without choosing a side. The surfaces (CLI, app, SDK), public-preview status, and Oct 1, 2026 date are as stated. Absence of a GA date and of typical per-run cost on both pages is accurately reported. Vendor claims are attributed to GitHub / the changelog / the docs. The two internal /article/ links resolve to existing articles.
Overall Assessment: Accurate, well-sourced briefing that handles the changelog/docs plan-availability disagreement transparently. Approved.